Season 5 Episode Guide

Conclusion. The CSIs frantically search for the spot where Nick is buried alive in a makeshift coffin. If they don't find him soon, he'll die from lack of oxygen. Quentin Tarantino directed. Kelly: Aimee Graham.

Part 1 of two. Nick is kidnapped at a crime scene and buried alive in a makeshift coffin. The kidnapper demands a ransom of $1 million within 12 hours, or else Nick will die. However, it's against department policy to negotiate with terrorists and offer up ransom money, so Catherine turns to her father, Sam Braun, for the cash. Quentin Tarantino directed. Judge Stokes: Andrew Prine. Jillian: Lois Chiles.

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Two college students are found dead in a dorm room following a night of heated passion, but there seems to be no evidence of foul play. Outside of town, a body is discovered in the middle of what appears to be a crop circle, with no footprints leading into or out of it. Back at the lab, Ecklie is forced to go into the field and process a crime scene because all of his CSIs are out investigating cases. It goes well until the victim's body goes missing from the morgue.

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Catherine gets passionate with a stranger (Alan Rosenberg) outside a bar, but she soon regrets it when the man, who turns out to be a public defender, becomes the chief suspect in two murders, both involving women seen at the bar. Lily: Anita Gillette. Granger: Channon Roe. Ellen: Lauren Bowles. Jeff: Shawn Hatosy. Holly: Elaine Curtis.

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An inmate is murdered at a state mental hospital that houses sexually violent predators and the criminally insane. The good news: All of the suspects are locked inside. The bad news: They're all capable of extreme violence, which Sara learns all too soon. Adam: James Badge Dale. Nurse McKay: Annie Corley.

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Brass's estranged daughter, an L.A. hooker, asks for help when her friend goes missing after being picked up by a john in Hollywood. Brass arrives and works the case with an old friend from New Jersey, but his presence makes his daughter uncomfortable. After the missing woman's body turns up, the case intensifies, and the chief suspects are some of L.A.'s most respected people. Annie: Donna Murphy. Ellie: Teal Redman. Piccone: Johnny Sneed. Dakota: Lindsay Beamish.

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Grissom investigates a near deadly collision on a one-way street; Warrick probes the murder of a model at an auto show; Sara and Greg search for clues in the death of a bodybuilder at his home; and Nick gathers evidence to determine how a 12-year-old boy died and why his body was left on a city bench. Candace: Lauren C. Mayhew. Tiffany: Joy Leslie Hadnott. Donny: Neil Hopkins. Frank: Reni Santoni. Chase: Dyllan Christopher. Chester: Clement Blake.

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Two charred bodies are found near a hillside in the country, one of whom was a stargazer who was apparently consumed by a rolling fireball. As Grissom investigates the scene, he discovers that the other victim is still alive. In a suburban neighborhood, a 5-year-old girl is found drowned in a family pool and her parents are discovered shot to death inside the house. Tara: Lina Patel. Bromley: Justin Kirk. Matthews: Tim DeKay. Annabelle: Heather McComb. Brad: Terry Bozeman.

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A flight attendant is raped and stabbed to death in her low-rent hotel room, but the killer leaves no trace. The crime shows eerie similarities to an unsolved rape-murder committed five years ago. Across town in an upscale neighborhood, Catherine investigates the beating death of a 12-year-old boy who was apparently slain in his bed while his parents slept in a nearby room. Acheson: Stephen Baldwin. Michelle: Tamara Clatterbuck. Adam: James Patrick Stuart. Lucy: Cleo King. Hawkins: Lee Tergesen.

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The discovery of a gunshot victim in a canyon leads Catherine and Warrick into the high-stakes world of sports betting. Back in town, a convention of plus-size people draws Grissom's interest as he probes the case of a man who was crushed to death in his hotel room. The investigation reveals that the man was friendly with some heavyset women who were attending the convention. Urbana: Steve Lawrence. Varney: Craig Saslow. Russell: Lee Burns. Barnes: Claude Shires.

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A powerful Las Vegas casino owner (who had more enemies than friends) is found dead in his driveway after falling, jumping or being pushed from an upper-floor balcony of his plush mansion. Catherine's team is the first to respond to the scene, but Ecklie also brings in Grissom and his crew to help with the high-profile case, which doesn't sit well with Catherine. The investigation reveals that the dead man had dirt on most every prominent person in town and a dark secret of his own.

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A hunter is found mauled to death in the mountains and the Kodiak bear that killed him is also found slain nearby with its stomach slashed open and its gallbladder removed. The probe reveals that the bear isn't native to Nevada and that it was probably smuggled in. Back in the city, Grissom investigates the disappearance of a wealthy young mother who vanished shortly after meeting a girlfriend at a bar where a male patron may have been stalking her.

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Two female bodies, buried together and covered in tar, are discovered by construction workers out in the desert. The investigation reveals that both victims' fingertips have been cut off and that they were apparently buried years apart. Later, Sara treats one suspect with such disdain that it jeopardizes her job and she reveals to Grissom a dark family secret that is at the root of her recurring personal problems.

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A severed human head, with all of its hair pulled out and a dead baby rattlesnake stuffed in its throat, is found inside of a newspaper dispenser in a predominantly Spanish-speaking part of town. The investigation reveals that the victim's death may be linked to a type of Mexican music that glorifies crime. Also, a man is found shot to death in a car on the roof of a casino parking garage, and the evidence indicates that the shooter may be wheelchair bound.

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A man who pretended he was Sherlock Holmes and re-created the legendary sleuth's famous 221B Baker St. dwelling in his basement is found shot to death there. The chief suspects fancy themselves to be Dr. Watson, Prof. Moriarty and Irene Adler. Grissom initially investigates, but hands the case off to Greg for his final proficiency. Outside of town, a dead man is found inside a wrecked vehicle and Warrick and Nick try to determine whether foul play was involved.

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Sara's mysterious background becomes a bit more clear as she helps investigate the starvation death of a 5-year-old boy whose body is discovered near a trash dumpster. At the county lock-up, Warrick and Nick probe the beating of a prisoner in an overcrowded cell. Later, Catherine learns that being the boss isn't all it's cracked up to be when she has to reprimand Warrick for what she deems unprofessional behavior.

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Grissom and his crew come under fire from the lab's new assistant director after Grissom discovers a previously undetected fingerprint on a key piece of evidence while testifying during a murder trial. The new evidence makes the lab look bad---and puts Grissom on the hot seat. In another case, Sara and Greg probe the shooting death of a John Doe to determine whether he was murdered or committed suicide. Ecklie: Marc Vann. Sofia: Louise Lombard.

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Grissom is plunged into the world of transgenders while investigating the murder of a woman who was slashed and mutilated after she stopped her car on a dark road outside of Vegas. This is the series' 100th episode. Mona: Lindsay Crouse. Wendy: Sarah Buxton. Laner: Raphael Sbarge. Mimosa: Kate Walsh. Hess: Sam Anderson. Dina: Lee Hardin. Bev: Marci Bowers.

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Grissom believes that a serial killer responsible for several deaths at a Las Vegas college over the past 17 years is at it again when body parts are found on campus. But the latest victim is a departure from the killer's previous targets. Lewis: David Lee Smith. Eva: Harriet Sansom Harris. Wilson: Ron Perkins. Beerly: Wayne Duvall. Greer: Taylor Nichols. Mathers: Victor Bevine. Roger: Patrick Levis. Mandy: Summer Glau. Kaitlin: April Bowlby.

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Catherine and Nick investigate the mysterious death of a woman who recently underwent cosmetic surgery after her body is discovered in a hotel suite; Grissom, Sara and Greg probe the suspicious death of a man who died in his house, apparently while it was being fumigated; Warrick confronts Catherine about the chemistry between them. Watson: David Anders. Malaga: Steven Brand. Ted: A.J. Buckley. Allen: Corey Mendell Parker. Beckman: David Wells.

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Grissom and his crew investigate the kidnapping of a 12-year-old girl from a convenience-store parking lot while her older sister is inside. The case hits the CSIs hard, and Catherine even harder after Lindsey is picked up by the police for hitchhiking. Back in the lab, Greg's latest replacement attracts Warrick's attention, but her eccentric personality could be a problem. Lindsay: Madison McReynolds. Sybil: Melissa Leo. April: America Ferrera. Perez: Carlos Gomez.

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A man's badly twisted corpse is found in a city storm-drain tunnel following a severe thunderstorm, and the discovery leads to another disturbing finding: human bones that may have come from a murder victim. As more bones are found the investigation focuses on identifying the victim and pinpointing the location where the body was dumped.

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The team investigates four mysterious deaths, including what some believe is an alien found in a shallow grave in Area 51. In addition, a man is shot in a nightclub, a stripper's bloody body is found in a hotel room, a gambler is discovered dead in a bathtub in a seedy motel; Greg is tested by Grissom on his first real assignment in the field; and Greg's replacement in the lab endures a rough first night.